【题目】读一读，写出动词的过去式。
1. help______
2. do______
3. wash______
4. cook______
5. is______
6. are______
【答案】helped did washed cooked was were
【解析】
略
【题目】读一读，写出动词的过去式。
1. help______
2. do______
3. wash______
4. cook______
5. is______
6. are______
【答案】helped did washed cooked was were
【解析】
略
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